If they have hosting services provided in they US, or by a US company, they may still be effected by DMCA notices (or at least, the hosting provider would be).
Australian law is tricky when it comes to the DMCA. There isn't specifically an Australian DMCA, but through trade-agreements there is parity between Australian copyright law and the US', which may include similar provisions.
Australian law is tricky when it comes to the DMCA. There isn't specifically an Australian DMCA, but through trade-agreements there is parity between Australian copyright law and the US', which may include similar provisions.